Schneider TM2DDO8UT Transistor Output Module Specs

Buy TM2DDO8UT | Modicon M238 8-Channel Sink Output

Product Introduction

The TM2DDO8UT discrete output module expands the Modicon M238 controller family with eight powerful transistor outputs. Schneider Electric engineered this module for sink logic applications, providing 24 V DC switching at 0.3 A per channel. Consequently, it serves as an ideal solution for driving resistive loads, small solenoids, and visual indicators in automation systems.

This output module distinguishes itself through its impressive speed. The response time reaches only 300 µs for both on and off transitions. Therefore, your control loops remain tight and responsive, even in high-speed sequencing applications. Additionally, the module includes a single common point rated for 3 A maximum, simplifying wiring layouts.

Technical Specifications

Focusing on electrical performance, the TM2DDO8UT operates within a voltage range of 20.4 V to 28.8 V DC. The residual voltage at state 1 measures just 1 V, ensuring efficient power delivery to connected loads. Current consumption totals 10 mA at 5 V DC and 20 mA at 24 V DC when all outputs are energized. This low draw minimizes strain on your system power supply.

However, note that this module lacks short-circuit and overload protection. Hence, external fusing or protection devices are strongly recommended for each output channel. Isolation between channels is not provided, but the module offers 500 V isolation between outputs and internal logic for one minute, safeguarding your controller from field wiring faults.

The TM2DDO8UT supports a maximum tungsten load of 8 W, making it compatible with incandescent lamps and similar loads. For inductive loads, always use appropriate flyback diodes to suppress voltage spikes.

Mechanical and Environmental Parameters

Measuring 27.3 mm in width, 84.6 mm in depth, and 90 mm in height, the TM2DDO8UT maintains a compact footprint. It weighs only 0.085 kg, facilitating lightweight panel installations. Mounting options include 35 mm symmetrical DIN rails using catalog parts AM1DE200 (15 mm) or AM1DP200 (7.5 mm). Avoid using AM1ED200 or DZ5MB200 with this module. Alternatively, panel surface mounting is achievable using the specified hole layout.

Environmentally, this product carries Schneider's Green Premium label, confirming sustainable design. It contains no mercury and complies with EU RoHS directives. The country of origin is Japan, and the GTIN is 00785901665458. For end-of-life disposal in European markets, follow WEEE collection guidelines—do not discard in household waste.

Installation Guidelines

Proper installation ensures reliable operation of the TM2DDO8UT. Begin by securely mounting the module on a DIN rail or panel surface. Pull out the clamp by 8.5 mm (0.33 in) before attaching wires to the removable screw terminal block. Use twisted cables for signal wiring to minimize electromagnetic interference.

When connecting loads, observe the single common point configuration. The total current through this common must not exceed 3 A. Additionally, distribute loads evenly across channels to prevent thermal buildup. For inductive loads, install suppression diodes directly across the load terminals to protect the output transistors from back-EMF.

Packaging List

Your shipment of the TM2DDO8UT includes these items:

• Discrete output module TM2DDO8UT (1 unit)

• Removable screw terminal block (1 piece)

• DIN rail mounting clip (pre-attached)

• Quick-start installation leaflet

Note: Cables, fuses, suppression diodes, and panel mounting hardware are sold separately.

Shipping and Logistics

All orders are dispatched through premium carriers such as FedEx, UPS, and DHL. We ensure robust packaging to protect your module during transit. Tracking information will be provided once your order ships.

Frequently Asked Questions (FAQ)

1. What type of outputs does the TM2DDO8UT provide?
This module delivers transistor outputs with sink logic at 24 V DC. Each channel sources current to ground when activated.

2. Can I use this module to drive motors directly?
No, the TM2DDO8UT is rated for 0.3 A per channel. For motor loads, use interposing relays or contactors to handle higher currents.

3. Does the module include built-in protection against short circuits?
No, short-circuit and overload protection are not provided. External fuses or circuit breakers are essential for each output.

4. How fast can the outputs switch?
The response time is 300 µs for both turning on and off, making it suitable for high-speed applications like positioning or counting.

5. Is the TM2DDO8UT compatible with other controller families?
While designed for Modicon M238, it also offers compatibility with Advantys OTB and Twido ranges, providing flexibility for mixed systems.